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Diffstat (limited to 'plugins/shn/shn.h')
| -rw-r--r-- | plugins/shn/shn.h | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/plugins/shn/shn.h b/plugins/shn/shn.h new file mode 100644 index 00000000..3f64a23c --- /dev/null +++ b/plugins/shn/shn.h @@ -0,0 +1,277 @@ +/* xmms-shn - a shorten (.shn) plugin for XMMS + * Copyright (C) 2000-2007 Jason Jordan <shnutils@freeshell.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* + * $Id: shn.h,v 1.27 2007/03/23 05:49:48 jason Exp $ + */ + +#ifndef _SHN_H +#define _SHN_H + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/stat.h> +#include "../../deadbeef.h" + +extern DB_functions_t *deadbeef; + +#define shn_vsnprintf(a,b,c,d) vsnprintf(a,b,c,d) + +#define min(a,b) (((a)<(b))?(a):(b)) + +/* surely no headers will be this large. right? RIGHT? */ +#define OUT_BUFFER_SIZE 16384 + +#define BUF_SIZE 4096 + +#define ERROR_OUTPUT_DEVNULL 0 +#define ERROR_OUTPUT_STDERR 1 +#define ERROR_OUTPUT_WINDOW 2 + +#define SEEK_SUFFIX "skt" + +#define NO_SEEK_TABLE -1 + +#define SEEK_HEADER_SIGNATURE "SEEK" +#define SEEK_TRAILER_SIGNATURE "SHNAMPSK" + +#define SEEK_HEADER_SIZE 12 +#define SEEK_TRAILER_SIZE 12 +#define SEEK_ENTRY_SIZE 80 +#define SEEK_RESOLUTION 25600 + +#define WAVE_RIFF (0x46464952) /* 'RIFF' in little-endian */ +#define WAVE_WAVE (0x45564157) /* 'WAVE' in little-endian */ +#define WAVE_FMT (0x20746d66) /* ' fmt' in little-endian */ +#define WAVE_DATA (0x61746164) /* 'data' in little-endian */ + +#define AIFF_FORM (0x4D524F46) /* 'FORM' in little-endian */ + +#define WAVE_FORMAT_UNKNOWN (0x0000) +#define WAVE_FORMAT_PCM (0x0001) +#define WAVE_FORMAT_ADPCM (0x0002) +#define WAVE_FORMAT_IEEE_FLOAT (0x0003) +#define WAVE_FORMAT_ALAW (0x0006) +#define WAVE_FORMAT_MULAW (0x0007) +#define WAVE_FORMAT_OKI_ADPCM (0x0010) +#define WAVE_FORMAT_IMA_ADPCM (0x0011) +#define WAVE_FORMAT_DIGISTD (0x0015) +#define WAVE_FORMAT_DIGIFIX (0x0016) +#define WAVE_FORMAT_DOLBY_AC2 (0x0030) +#define WAVE_FORMAT_GSM610 (0x0031) +#define WAVE_FORMAT_ROCKWELL_ADPCM (0x003b) +#define WAVE_FORMAT_ROCKWELL_DIGITALK (0x003c) +#define WAVE_FORMAT_G721_ADPCM (0x0040) +#define WAVE_FORMAT_G728_CELP (0x0041) +#define WAVE_FORMAT_MPEG (0x0050) +#define WAVE_FORMAT_MPEGLAYER3 (0x0055) +#define WAVE_FORMAT_G726_ADPCM (0x0064) +#define WAVE_FORMAT_G722_ADPCM (0x0065) + +#define CD_BLOCK_SIZE (2352) +#define CD_BLOCKS_PER_SEC (75) +#define CD_MIN_BURNABLE_SIZE (705600) +#define CD_CHANNELS (2) +#define CD_SAMPLES_PER_SEC (44100) +#define CD_BITS_PER_SAMPLE (16) +#define CD_RATE (176400) + +#define CANONICAL_HEADER_SIZE (44) + +#define PROBLEM_NOT_CD_QUALITY (0x00000001) +#define PROBLEM_CD_BUT_BAD_BOUND (0x00000002) +#define PROBLEM_CD_BUT_TOO_SHORT (0x00000004) +#define PROBLEM_HEADER_NOT_CANONICAL (0x00000008) +#define PROBLEM_EXTRA_CHUNKS (0x00000010) +#define PROBLEM_HEADER_INCONSISTENT (0x00000020) + +#define PROB_NOT_CD(f) ((f.problems) & (PROBLEM_NOT_CD_QUALITY)) +#define PROB_BAD_BOUND(f) ((f.problems) & (PROBLEM_CD_BUT_BAD_BOUND)) +#define PROB_TOO_SHORT(f) ((f.problems) & (PROBLEM_CD_BUT_TOO_SHORT)) +#define PROB_HDR_NOT_CANONICAL(f) ((f.problems) & (PROBLEM_HEADER_NOT_CANONICAL)) +#define PROB_EXTRA_CHUNKS(f) ((f.problems) & (PROBLEM_EXTRA_CHUNKS)) +#define PROB_HDR_INCONSISTENT(f) ((f.problems) & (PROBLEM_HEADER_INCONSISTENT)) + +typedef struct _shn_config +{ + int error_output_method; + char *error_output_method_config_name; + char *seek_tables_path; + char *seek_tables_path_config_name; + char *relative_seek_tables_path; + char *relative_seek_tables_path_config_name; + int verbose; + char *verbose_config_name; + int swap_bytes; + char *swap_bytes_config_name; + int load_textfiles; + char *load_textfiles_config_name; + char *textfile_extensions; + char *textfile_extensions_config_name; +} shn_config; + +typedef struct _shn_decode_state +{ + uchar *getbuf; + uchar *getbufp; + int nbitget; + int nbyteget; + ulong gbuffer; + schar *writebuf; + schar *writefub; + int nwritebuf; +} shn_decode_state; + +typedef struct _shn_seek_header +{ + uchar data[SEEK_HEADER_SIZE]; + slong version; + ulong shnFileSize; +} shn_seek_header; + +typedef struct _shn_seek_trailer +{ + uchar data[SEEK_TRAILER_SIZE]; + ulong seekTableSize; +} shn_seek_trailer; + +typedef struct _shn_seek_entry +{ + uchar data[SEEK_ENTRY_SIZE]; +} shn_seek_entry; + +/* old way, kept for reference. + (changed because some compilers apparently don't support #pragma pack(1)) + +typedef struct _shn_seek_header +{ + char signature[4]; + unsigned long version; + unsigned long shnFileSize; +} shn_seek_header; + +typedef struct _shn_seek_trailer +{ + unsigned long seekTableSize; + char signature[8]; +} shn_seek_trailer; + +typedef struct _shn_seek_entry +{ + unsigned long shnSample; + unsigned long shnByteOffset; + unsigned long shnLastPosition; + unsigned short shnByteGet; + unsigned short shnBufferOffset; + unsigned short shnBitOffset; + unsigned long shnGBuffer; + unsigned short shnBitShift; + long cbuf0[3]; + long cbuf1[3]; + long offset0[4]; + long offset1[4]; +} shn_seek_entry; +*/ + +typedef struct _shn_wave_header +{ + const char *filename; + char m_ss[16]; + + uint header_size; + + ushort channels, + block_align, + bits_per_sample, + wave_format; + + ulong samples_per_sec, + avg_bytes_per_sec, + rate, + length, + data_size, + total_size, + chunk_size, + actual_size; + + double exact_length; + + int file_has_id3v2_tag; + long id3v2_tag_size; + + ulong problems; +} shn_wave_header; + +typedef struct _shn_vars +{ + DB_FILE *fd; + int seek_to; + int eof; + int going; + slong seek_table_entries; + ulong seek_resolution; + int bytes_in_buf; + uchar buffer[OUT_BUFFER_SIZE]; + int bytes_in_header; + uchar header[OUT_BUFFER_SIZE]; + int fatal_error; + schar fatal_error_msg[BUF_SIZE]; + int reading_function_code; + ulong last_file_position; + ulong last_file_position_no_really; + ulong initial_file_position; + ulong bytes_read; + unsigned short actual_bitshift; + int actual_maxnlpc; + int actual_nmean; + int actual_nchan; + long seek_offset; +} shn_vars; + +typedef struct _shn_file +{ + shn_vars vars; + shn_decode_state *decode_state; + shn_wave_header wave_header; + shn_seek_header seek_header; + shn_seek_trailer seek_trailer; + shn_seek_entry *seek_table; +} shn_file; + +extern shn_config shn_cfg; + +extern shn_seek_entry *shn_seek_entry_search(shn_seek_entry *,ulong,ulong,ulong,ulong); +extern void shn_load_seek_table(shn_file *,const char *); +extern void shn_unload(shn_file *); +extern int shn_verify_header(shn_file *); +extern int shn_filename_contains_a_dot(const char *); +extern char *shn_get_base_filename(const char *); +extern char *shn_get_base_directory(const char *); +extern void shn_length_to_str(shn_file *); +extern char *shn_format_to_str(ushort); +extern ulong shn_uchar_to_ulong_le(uchar *); +extern slong shn_uchar_to_slong_le(uchar *); +extern ushort shn_uchar_to_ushort_le(uchar *); +extern void shn_debug(char *, ...); +extern void shn_error(char *, ...); +extern void shn_error_fatal(shn_file *,char *, ...); +extern void shn_snprintf(char *,int,char *, ...); + +#endif |